15 C. And 45 C. Postage stamps issue "Merkur head" and 55 C. Charity issue "Postal Museum in Paris", properly franked mixed franking on cover from Dunkerque 03.07.1940 to Ghyvelde with on the back arrivals cancel from 4.07.1940, very fine, expertized Calves, Dreyfus, Roumet and expertise Lothar Herbst VP (2025) "the condition is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. ", Michel 1.200.-